LOCAL void * cacheLsn2eVirtToPhys
(
void * address /* Virtual address */
)
{
return ((void *) K0_TO_PHYS(address));
}
/*
* bcm6352_init_dev: initialize Ethernet Switch device,
* allocate Tx/Rx buffer descriptors pool, Tx control block pool.
*/
static int bcm6352_init_dev(bcm6352enet_softc *softc)
{
unsigned long i, j;
unsigned char *p = NULL;
/* make sure emac clock is on */
INTC->blkEnables |= (ESWITCH_CLK_EN | EPHY_CLK_EN);
/* setup buffer/pointer relationships here */
softc->nrRxBds = NR_RX_BDS;
softc->rxBufLen = ENET_MAX_MTU_SIZE;
/* init rx/tx dma channels */
softc->dmaChannels = (DmaChannel *)(DMA_BASE);
softc->rxDma = &softc->dmaChannels[EMAC_RX_CHAN];
softc->txDma = &softc->dmaChannels[EMAC_TX_CHAN];
p = (unsigned char *) (((uint32_t) softc->txBuf + 0x10) & ~0x0f);
softc->txBufPtr = (unsigned char *)K0_TO_K1((uint32_t) p);
p = (unsigned char *) (((uint32_t) softc->rxMem + 0x10) & ~0x0f);
softc->rxBds = (DmaDesc *)K0_TO_K1((uint32_t) p);
p += softc->nrRxBds * sizeof(DmaDesc);
softc->rxBuffers = (unsigned char *) K0_TO_PHYS((uint32_t) p);
/* initialize rx ring pointer variables. */
softc->rxBdAssignPtr = softc->rxBdReadPtr = softc->rxBds;
softc->rxFirstBdPtr = softc->rxBds;
softc->rxLastBdPtr = softc->rxFirstBdPtr + softc->nrRxBds - 1;
/* init the receive buffer descriptor ring */
for (i = 0, j = (unsigned long) softc->rxBuffers; i < softc->nrRxBds;
i++, j += softc->rxBufLen)
{
(softc->rxFirstBdPtr + i)->length = softc->rxBufLen;
(softc->rxFirstBdPtr + i)->address = j;
(softc->rxFirstBdPtr + i)->status = DMA_OWN;
}
softc->rxLastBdPtr->status = DMA_OWN | DMA_WRAP;
/* init dma registers */
init_dma(softc);
/* init switch control registers */
init_mii(softc);
softc->rxDma->cfg |= DMA_ENABLE;
/* if we reach this point, we've init'ed successfully */
return 0;
}
